Genetic algorithm based multi-objective reliability optimization in interval environment

  • Authors:
  • Laxminarayan Sahoo;Asoke Kumar Bhunia;Parmad Kumar Kapur

  • Affiliations:
  • Department of Mathematics, Raniganj Girls' College, Raniganj 713 347, India;Department of Mathematics, The University of Burdwan, Burdwan 713 104, India;Department of Operational Research, University of Delhi, Delhi 110 007, India

  • Venue:
  • Computers and Industrial Engineering
  • Year:
  • 2012

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Abstract

In most of the real world design or decision making problems involving reliability optimization, there are simultaneous optimization of multiple objectives such as the maximization of system reliability and the minimization of system cost, weight and volume. In this paper, our goal is to solve the constrained multi-objective reliability optimization problem of a system with interval valued reliability of each component by maximizing the system reliability and minimizing the system cost under several constraints. For this purpose, four different multi-objective optimization problems have been formulated with the help of interval mathematics and our newly proposed order relations of interval valued numbers. Then these optimization problems have been solved by advanced genetic algorithm and the concept of Pareto optimality. Finally, to illustrate and also to compare the results, a numerical example has been solved.